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Currency Crises and Foreign Reserves; A Simple Model


  • Piti Disyatat


This paper addresses the important question of how far a government will run down its stock of foreign reserves in a defense of a fixed exchange rate. An optimizing model of currency crisis is presented in which the decision of whether or not to borrow in a defense of a peg is explicitly analyzed. The threshold level of reserves is then determined endogenously and shown to be a function of fundamental economic variables. The analysis also demonstrates how an increase in the level of reserves, a credit-rating upgrade, or the imposition of capital controls can remove the multiplicity of equilibria.

Suggested Citation

  • Piti Disyatat, 2001. "Currency Crises and Foreign Reserves; A Simple Model," IMF Working Papers 01/18, International Monetary Fund.
  • Handle: RePEc:imf:imfwpa:01/18

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    References listed on IDEAS

    1. Ozkan, F Gulcin & Sutherland, Alan, 1995. "Policy Measures to Avoid a Currency Crisis," Economic Journal, Royal Economic Society, vol. 105(429), pages 510-519, March.
    2. Maurice Obstfeld & Kenneth S. Rogoff, 1996. "Foundations of International Macroeconomics," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262150476, January.
    3. Bensaid, Bernard & Jeanne, Olivier, 1997. "The instability of fixed exchange rate systems when raising the nominal interest rate is costly," European Economic Review, Elsevier, vol. 41(8), pages 1461-1478, August.
    4. Andersen, Torben M, 1994. "Shocks and the Viability of a Fixed Exchange Rate Commitment," CEPR Discussion Papers 969, C.E.P.R. Discussion Papers.
    5. Sachs, Jeffrey & Tornell, Aaron & Velasco, Andres, 1996. "The Mexican peso crisis: Sudden death or death foretold?," Journal of International Economics, Elsevier, vol. 41(3-4), pages 265-283, November.
    6. Calvo, Guillermo A. & Mendoza, Enrique G., 1996. "Mexico's balance-of-payments crisis: a chronicle of a death foretold," Journal of International Economics, Elsevier, vol. 41(3-4), pages 235-264, November.
    7. Krugman, Paul, 1979. "A Model of Balance-of-Payments Crises," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 11(3), pages 311-325, August.
    8. Barry Eichengreen & Andrew K. Rose & Charles Wyplosz, 1994. "Speculative Attacks on Pegged Exchange Rates: An Empirical Exploration with Special Reference to the European Monetary System," NBER Working Papers 4898, National Bureau of Economic Research, Inc.
    9. Flood, Robert & Marion, Nancy, 1999. "Perspectives on the Recent Currency Crisis Literature," International Journal of Finance & Economics, John Wiley & Sons, Ltd., vol. 4(1), pages 1-26, January.
    10. Jeanne, Olivier, 1997. "Are currency crises self-fulfilling?: A test," Journal of International Economics, Elsevier, vol. 43(3-4), pages 263-286, November.
    11. Otani, Kiyoshi, 1989. "A collapse of a fixed rate regime with a discrete realignment of the exchange rate," Journal of the Japanese and International Economies, Elsevier, vol. 3(3), pages 250-269, September.
    12. Flood, Robert P. & Garber, Peter M., 1984. "Collapsing exchange-rate regimes : Some linear examples," Journal of International Economics, Elsevier, vol. 17(1-2), pages 1-13, August.
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    Cited by:

    1. David Fernando LOPEZ ANGARITA, 2006. "Nivel óptimo de Reservas Internacionales y crisis cambiaria en Colombia," ARCHIVOS DE ECONOMÍA 003273, DEPARTAMENTO NACIONAL DE PLANEACIÓN.
    2. repec:eco:journ1:2017-02-31 is not listed on IDEAS
    3. Graham Bird & Ramkishen Rajan, 2002. "The Evolving Asian Financial Architecture," Centre for International Economic Studies Working Papers 2002-03, University of Adelaide, Centre for International Economic Studies.
    4. Graham Bird & Ramkishen Rajan, 2003. "Too Much of a Good Thing? The Adequacy of International Reserves in the Aftermath of Crises," The World Economy, Wiley Blackwell, vol. 26(6), pages 873-891, June.
    5. Martín Redrado & Jorge Carrera & Diego Bastourre & Javier Ibarlucia (ed.), 2006. "The Economic Policy of Foreign Reserve Accumulation: New International Evidence," BCRA Paper Series, Central Bank of Argentina, Economic Research Department, number 02, December.
    6. Martín Redrado & Jorge Carrera & Diego Bastourre & Javier Ibarlucia, 2006. "The Economic Policy of Foreign Reserve Accumulation: New International Evidence," BCRA Working Paper Series 200614, Central Bank of Argentina, Economic Research Department.
    7. Ramkishen S. Rajan, 2006. "Monetary and Financial Cooperation in Asia : Emerging Trends and Prospects," Finance Working Papers 22125, East Asian Bureau of Economic Research.
    8. Moser, Thomas, 2003. "What Is International Financial Contagion?," International Finance, Wiley Blackwell, vol. 6(2), pages 157-178, Summer.
    9. Brahima Coulibaly, 2009. "Currency unions and currency crises: an empirical assessment," International Journal of Finance & Economics, John Wiley & Sons, Ltd., vol. 14(3), pages 199-221.


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